12985850 has 12 divisors (see below), whose sum is σ = 24153774. Its totient is φ = 5194320.

The previous prime is 12985801. The next prime is 12985867. The reversal of 12985850 is 5858921.

It can be written as a sum of positive squares in 3 ways, for example, as 10106041 + 2879809 = 3179^2 + 1697^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129809 + ... + 129908.

Almost surely, 2^12985850 is an apocalyptic number.

12985850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12985850 is a deficient number, since it is larger than the sum of its proper divisors (11167924).

12985850 is a wasteful number, since it uses less digits than its factorization.

12985850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259729 (or 259724 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 12985850 is about 3603.5884892701. The cubic root of 12985850 is about 235.0481265550.

The spelling of 12985850 in words is "twelve million, nine hundred eighty-five thousand, eight hundred fifty".